Boost Sensor Check (200SX)
WARNING: This page is about a different car, the 1985 Nissan Maxima and 1985 Nissan 200SX. However, it is still accessible from the selected car via links, so may be relevant.
- Connect vacuum pump gauge to boost sensor vacuum hose. Disconnect wire harness connector from boost sensor and connect battery and voltmeter.
- Apply vacuum pressure to boost sensor by vacuum pump gauge and measure voltages. Reading should be approximately 2.2 volts at zero in. Hg. of vacuum. Reading should be approximately 1.3 volts at 15.75 in. Hg. of vacuum. If any measurement is incorrect, replace boost sensor.